Home / 85,587.36-118,116-47,864.40

Finding the Fourth Proportional to 85,587.36, 118,116 and 47,864.40

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Solution

The fourth proportional to 85,587.36, 118,116 and 47,864.40 is: 66,055.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,587.36 : 118,116 = 47,864.40 : x
  2. Step 2: Convert to fraction form
    85,587.36/118,116 = 47,864.40/x
  3. Step 3: Cross multiply
    85,587.36x = 118,116 × 47,864.40
  4. Step 4: Simplify right side
    85,587.36x = 5,653,551,470.40
  5. Step 5: Solve for x
    x = 5,653,551,470.40/85,587.36
  6. Step 6: Final answer
    x = 66,055.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.